diff options
Diffstat (limited to 'drivers/ieee1394/ieee1394_core.h')
| -rw-r--r-- | drivers/ieee1394/ieee1394_core.h | 15 |
1 files changed, 9 insertions, 6 deletions
diff --git a/drivers/ieee1394/ieee1394_core.h b/drivers/ieee1394/ieee1394_core.h index ad526523d0ef..21d50f73a210 100644 --- a/drivers/ieee1394/ieee1394_core.h +++ b/drivers/ieee1394/ieee1394_core.h @@ -24,9 +24,8 @@ struct hpsb_packet { nodeid_t node_id; - /* Async and Iso types should be clear, raw means send-as-is, do not - * CRC! Byte swapping shall still be done in this case. */ - enum { hpsb_async, hpsb_iso, hpsb_raw } __attribute__((packed)) type; + /* hpsb_raw = send as-is, do not CRC (but still byte-swap it) */ + enum { hpsb_async, hpsb_raw } __attribute__((packed)) type; /* Okay, this is core internal and a no care for hosts. * queued = queued for sending @@ -37,7 +36,7 @@ struct hpsb_packet { hpsb_unused, hpsb_queued, hpsb_pending, hpsb_complete } __attribute__((packed)) state; - /* These are core internal. */ + /* These are core-internal. */ signed char tlabel; signed char ack_code; unsigned char tcode; @@ -62,11 +61,15 @@ struct hpsb_packet { /* Store jiffies for implementing bus timeouts. */ unsigned long sendtime; - /* Sizes are in bytes. *data can be DMA-mapped. */ + /* Core-internal. */ size_t allocated_data_size; /* as allocated */ + + /* Sizes are in bytes. To be set by caller of hpsb_alloc_packet. */ size_t data_size; /* as filled in */ size_t header_size; /* as filled in, not counting the CRC */ - quadlet_t *data; + + /* Buffers */ + quadlet_t *data; /* can be DMA-mapped */ quadlet_t header[5]; quadlet_t embedded_data[0]; /* keep as last member */ }; |